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Finding the Fourth Proportional to 64,555.50, 96,870.76 and 27,112.70

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Solution

The fourth proportional to 64,555.50, 96,870.76 and 27,112.70 is: 40,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,555.50 : 96,870.76 = 27,112.70 : x
  2. Step 2: Convert to fraction form
    64,555.50/96,870.76 = 27,112.70/x
  3. Step 3: Cross multiply
    64,555.50x = 96,870.76 × 27,112.70
  4. Step 4: Simplify right side
    64,555.50x = 2,626,427,854.65
  5. Step 5: Solve for x
    x = 2,626,427,854.65/64,555.50
  6. Step 6: Final answer
    x = 40,684.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.